What Is Regional in Regional Clusters? The Case of the Globally Oriented Oil and Gas Cluster in Agder, Norway

This paper focuses on the question to what extent knowledge sources in regional clusters stimulate the innovation activity of cluster firms. In doing so we contribute to the literature by combining two analytical approaches: by (1) distinguishing firms dominated by different innovation modes; and (2) differentiating between inter-organizational linkages and open knowledge environments as two distinct knowledge sources. Based on data from the Agder equipment supplier industry we demonstrate that mobility of labour, local buzz and inter-organizational linkages are key regional knowledge sources, but clearly more so for some types of firms than others.